程序代码：

package 线程;
class Reasouce1{
     String name;
     String sex;   
}
class Input1 implements  Runnable{
    Reasouce1 r;
    public Input1(Reasouce1 r)
    {
        this.r=r;
    }
    public void run()
    {
        int flag=0;
        while(true){
            synchronized(r)
            {
                if(flag==0)
                {
                    r.name="旺财";
                    r.sex="男";
                }
                else
                {
                    r.name="小强";
                    r.sex="女女女女";   
                }       
            }
                flag=(flag+1)%2;   
        }
    }
}
class Output1 implements  Runnable{
    Reasouce1 r;
    Output1(Reasouce1 r)
    {
        this.r=r;
    }
    public void run()
    {
        while(true){
            synchronized(r)
            {
                System.out.println(r.name+".........."+r.sex);
            }
        }
    }
}
public class ThreadDemo3 {
    public static void main(String[] args) {
            Reasouce1 r=new Reasouce1();
            Input1 in=new Input1(r);
            Output1 out=new Output1(r);
            Thread t2=new Thread(in);
            Thread t1=new Thread(out);
            t2.start();
            t1.start();
    }

}